Red Seal Electrician Practice
Power factor and three-phaseQuestion 1411 of 1506

A balanced wye-connected load is fed from a 600 V line-to-line supply. What is the voltage across each phase?

  1. 300 V
  2. 200 V
  3. 346 V
  4. 600 V
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Correct answer: 346 V

In a balanced wye, phase voltage = line voltage ÷ √3 = 600 ÷ 1.732 = 346 V.

Source: Computed, 7.5: Three-phase Y and Delta Configurations

Practice power factor and three-phase

Questions last reviewed: 18 October 2026